dosatron DIA 2 F Manual De Utilización página 31

SYMPTOM CAUSE
Injection
Water flowing back Contamined, worn, or
missing check valve
into concentrate
parts.
container.
No suction of The motor has stopped.
concentrate.
Air leak (inlet) in the
suction tube.
Blocked suction tube or
clogged strainer.
Missing or worn suction
check valve o-ring.
Missing or worn plunger
seal.
Worn injection stem.
Under dosing. Suction of air.
Dirty or worn check
valve seal.
Maximum flow exceeded
(cavitation).
Worn plunger seal.
Worn injection stem.
Overdosing. Siphoning.
© DOSATRON INTERNATIONAL / 58
SOLUTION
Clean or replace it.
Check it has been
properly reassembled.
See motor section.
Check the tightness
between nut and
suction hose.
Clean or replace
them.
Clean or replace it.
Clean or replace it.
Replace it.
1. Check the tightness
of the nuts in the
injection area.
2. Check suction tube.
Clean or replace it.
Reduce flow.
Replace it.
Replace it.
Check your
installation.
Amend it and install
the necessary anti-
siphoning devices.
SYMPTOM CAUSE
Leaks
From the top cap, Screws untightened.
actuator assembly or
transfer parts.
Dirty, not fitting or
missing seals.
From the by-pass. Dirty, worn or missing
seals.
From the injection Dirty, worn or missing
part. seals.
THE MANUFACTURER DECLINES ALL RESPONSIBILITY IF THE DOSATRON
IS USED IN CONDITIONS THAT DO NOT CORRESPOND TO THE OPERATING
INSTRUCTIONS.
© DOSATRON INTERNATIONAL / 59
SOLUTION
Rescrew the screws.
It is not recommended
to open the top cap.
Clean or replace the
seals.
Clean or replace the
seals.
Clean or replace the
seals.